1. Objective: By the end of this class period, I will be able to … 1.identify a property as physical or chemical. 2.identify a property as intensive or extensive property 3.differentiate between chemical and physical changes

2. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

3. Physical Properties Definition: can be observed without altering the chemical composition of a substance

4. Physical Properties Definition: can be observed without altering the chemical composition of a substance color, texture, malleability, solubility, mass, volume, density Malleable: capable of being extended or shaped by beating

5. Play Dough: Physical Properties Color Texture Malleability Solubility Mass Density

6. Chemical Properties Definition: describes the ability of a substance to combine with or change into one or more new chemical substances.

7. Chemical Properties Definition: describes the ability of a substance to combine with or change into one or more new chemical substances. Toxicity, reactivity, flammability, radioactivity

8. Play Dough: Chemical Properties Toxicity Reactivity Flammability Radioactivity

9. Play Dough: Chemical Properties Toxicity Reactivity Flammability Radioactivity

10. Chemical vs. Physical Properties Ask yourself, “Would I have to change this substance into a new substance in order to view the property?”

11. Chemical vs. Physical Properties Ask yourself, “Would I have to change this substance into a new substance in order to view the property?”

12. Name That Property!! Series of 6 scenarios Talk over scenario with your desk partner(s) Record answer (either physical or chemical property) on your white board

13. #1 The boiling point of a certain alcohol is 75 degrees Celsius

14. Physical

15. #2 Copper forms green copper carbonate when in contact with moist air

16. Chemical

17. #3 Table salt dissolves in water

18. Physical

19. #4 Copper is a good conductor of heat and electricity

20. Physical

21. #5 Magnesium burns brightly when ignited

22. Chemical

23. #6 Iron is more dense than aluminum

24. Physical

25. Physical Properties Physical properties can be described as being intensive or extensive.

26. Extensive Properties: change when the size of a sample of matter changes. volume, mass, and length

27. Intensive Properties: properties that do not change with the sample size can be useful in identifying a substance

28. Intensive Properties: properties that do not change with the sample size can be useful in identifying a substance color, density, viscosity, temperature, solubility, and states of matter.

29. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

30. Intensive or extensive?? A pile of sand has a mass of 1,000kg

31. Extensive

32. Intensive or extensive?? Water is a liquid at room temperature

33. Intensive

34. Intensive or Extensive?? Table salt (NaCl) is white

35. Intensive

36. Intensive or extensive?? A glass of water has a volume of 1 liter

37. Extensive

38. Extensive or Intensive?? An ice cube’s density is 0.96 g/L

39. Intensive

40. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

41. Objective: By the end of this class period, I will be able to … 1.identify a property as physical or chemical. 2.identify a property as intensive or extensive property 3.differentiate between chemical and physical changes

42. What is matter? Matter is anything that has mass and takes up space. All matter can change 2 types of changes 1.Physical changes 2.Chemical changes

43. Physical Changes Definition: when the state or form of matter is changed without changing its chemical composition. Examples: cutting, freezing, melting, etc.

44. Changes in State: Vocabulary

45. Chemical Change Definition: takes place on a molecular level and produces a new chemical substance. ▫A chemical change always involves a chemical reaction.

46. Did you say a test question??

47. Physical vs. Chemical Changes Bunsen burner heating water Electricity run through water

48. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

49. Name That Change!! Talk over scenario with your desk partner(s) Lift up your chemical or physical card Each correct answer= 1 point Tie-Breaker at the end!!! Prize!!

50. ice melting

52. burning a chemistry book

54. melting iron

56. frying an egg

58. fireworks exploding in the sky

60. turning wood into a baseball bat

62. baking a cake

64. sharpening a pencil

66. carving a watermelon into a creepy looking face

68. pouring liquid nitrogen into a bowl and watching it vaporize

70. sulfuric acid added to sugar http://www.youtube.com/watch?v=nqDH wd9rG0s

72. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

73. Where is the Evidence??? Evidence of a chemical change: ▫color change ▫Bubbles or gas production ▫Release of heat, light, odor, or sound. ▫A solid (precipitate) forms in solution (liquid) Vocab: ignite, tarnish, evolve

74. Read the following paragraph to answer questions 1 and 2: A match is lit and held under a cold piece of metal. The following observations are made: The match burns. The metal gets warmer. Water condenses on the metal. Black soot (carbon) is deposited on the metal. 1. What is one physical change from the above paragraph? Why is it a physical change? 2. What is one chemical change from the above paragraph? Why is it a chemical change?

75. Agenda Quiz20 minutes Physical and Chemical Properties 10 minutes White board practice15 minutes Physical and Chemical Changes15 minutes Answer Cards10 minutes Independent Practice15 minutes Exit ticket10 minutes

76. Closure Chemical Change Physical Change Yes No What is one question that could have a yes or no answer that could always tell you if a change is chemical or physical?

77. Is a new substance formed?